Fasto A143 is a general purpose, medium-high strength, very fast curing and high performance thixotropic anaerobic threadlocker. Fasto A143 is formulated to lock all metric and imperial nuts and bolts, preventing vibration loosening and leakage through the threads. A143 is oil tolerant, so it will bond ‘as received’ parts, but best results are obtained with clean substrates. The thixotropic nature of the product prevents run off, dripping
